The first NINO3.4 SST anomaly graph illustrates raw WEEKLY OI.v2 SST anomaly data that’s centered on Wednesdays, from January 3, 1990 to February 25, 2009. The rest of the graphs illustrate raw monthly OI.v2 SST anomaly data from November 1981 to February 2009.

The monthly change (February 2009 Minus January 2009) in Global SST anomalies was approximately -0.020 deg C. NINO3.4 SST anomalies are just below the threshold of a La Nina. If the NINO3.4 SST anomalies continue to rise, it seems unlikely the CPC will consider 2008/09 a full-fledged La Nina event.

Comment Policy, SST Posts, and Notes

Comments that are political in nature or that have nothing to do with the post will be deleted.####The Smith and Reynolds SST Posts DOES NOT LIST ALL SST POSTS. I stopped using ERSST.v2 data for SST when NOAA deleted it from NOMADS early in 2009.

Please use the search feature in the upper left-hand corner of the page for posts on specific subjects.####NOTE: I’ve discovered that some of the links to older posts provide blank pages. While it’s possible to access that post by scrolling through the history, that’s time consuming. There’s a quick fix for the problem, so if you run into an absent post, please advise me. Thanks.####If you use the graphs, please cite or link to the address of the blog post or this website.